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Green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as preparation method and application thereof

A polyoxometalate, high-viscosity technology, applied in the directions of non-polymer adhesive additives, adhesive types, adhesive additives, etc., can solve problems such as enhancing the adhesion of polyvinyl alcohol, and achieve simple post-processing. , The product process quality is easy to control, the effect of solving safety problems and environmental problems

Active Publication Date: 2021-07-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method is simple and does not require the use of organic solvents, which can solve the safety problems caused by organic solvents in glass adhesives on the market. At the same time, the polyoxometalates in the system can greatly enhance the adhesion of polyvinyl alcohol to glass

Method used

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  • Green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as preparation method and application thereof
  • Green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as preparation method and application thereof
  • Green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 12g of polyvinyl alcohol 124 into a beaker, add 88mL of deionized water, and stir at 95°C for 5 hours. After the temperature of the solution was lowered to 50° C., 2.4 g of phosphotungstic acid was added, and the stirring was continued for 4 hours. Stop stirring and heating, and let it stand for 12 hours, that is, the polyoxometallate-based glass adhesive.

Embodiment 2

[0040] Weigh 12g of polyvinyl alcohol 124 into a beaker, add 88mL of deionized water, and stir at 95°C for 5 hours. After the temperature of the solution was lowered to 50° C., 9.6 g of phosphotungstic acid was added, and the stirring was continued for 4 hours. Stop stirring and heating, and let it stand for 12 hours, that is, the polyoxometallate-based glass adhesive.

Embodiment 3

[0042] Weigh 12g of polyvinyl alcohol 1799 into a beaker, add 88mL of deionized water, and stir at 95°C for 5 hours. After the temperature of the solution was lowered to 50° C., 2.4 g of phosphotungstic acid was added, and the stirring was continued for 4 hours. Stop stirring and heating, and let it stand for 12 hours, that is, the polyoxometallate-based glass adhesive.

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Abstract

The invention discloses a green low-toxicity high-viscosity polyoxometallate-based glass adhesive as well as a preparation method and application thereof. The adhesive is prepared from polyvinyl alcohol, polyoxometallate and water, the mass ratio of the polyvinyl alcohol to the polyoxometallate is 12: (2.4-84), and the mass ratio of the polyvinyl alcohol to the water is 1: 99-30: 70. According to the method, polyvinyl alcohol is completely dissolved in water and then is blended with polyoxometallate to prepare the adhesive. The adhesive is simple in production method, high in cohesiveness and non-toxic, and is mainly used for bonding between glass.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to a green, low-toxicity, high-viscosity polyoxometalate-based glass adhesive and a preparation method and application thereof. Background technique [0002] Glass adhesive is a material for bonding glass to glass or glass to other substrates, and is widely used in various fields of industry and life. [0003] In recent years, some problems in the production, use and disposal of glass adhesives prepared by traditional methods have gradually attracted everyone's attention. First, in the production process of traditional glass adhesives, harmful substances in the adhesive, such as volatile organic Toxic curing agents, plasticizers, thinners and other additives, harmful fillers, etc. will pollute the environment and cause harm to the human body. For example, acidic glass glue, long-term exposure to humid environment will produce acid gas, which will be irritating and corrosive to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J129/04C09J11/04
CPCC09J129/04C09J11/04C08K3/32C08K3/34
Inventor 陈坤殷盼超许哲玮
Owner SOUTH CHINA UNIV OF TECH
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